Finding the Fourth Proportional to 1,290.79, 1,933.59 and 596.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290.79 : 1,933.59 = 596.47 : x
2. Step 2: Convert to fraction form
   1,290.79/1,933.59 = 596.47/x
3. Step 3: Cross multiply
   1,290.79x = 1,933.59 × 596.47
4. Step 4: Simplify right side
   1,290.79x = 1,153,328.43
5. Step 5: Solve for x
   x = 1,153,328.43/1,290.79
6. Step 6: Final answer
   x = 893.51